【简答题】听小对话,选答案. 1. What time dose Sun Fei have to be at home? A. By 10:00 B. At 10:00 C After 10:00 2. What isn't Wu Yu allowed to do? A. To wear jeans. B. To get her ears pierced. C. To choose her own clot...
【简答题】PM2.5是指大气中直径小于或等于0.000 002 5米的颗粒物,将0.000 002 5用科学记数法表示为( ) A.0.25×10 -5 B .2.5×10 -5 C.2.5×10 -6 D.2.5×10 -7
【判断题】MatLab中,2.0145e+002表示的数为2.0145×10
【简答题】高中生物必修1第4章会考试题归类.docx
【单选题】下列哪项不能作为基因工程重组体的筛选方法?( )
【简答题】将下列二进制数转换成十六进制数 Q :(11 0101 1110.1101 0101 11) 2 (110 1011) 2